On-the-go. Hypoallergenic nutrition. For food allergies and colic due to protein sensitivity. No. 1 brand fed in hospitals. DHA/ARA. Perfect for diaper bags. Similac On-the-go ready to feed is convenient, portable, and ready for you and your baby. Perfect for travel and late-night feeding. Easy to use: no mixing or measuring. Alimentum contains a milk protein that is broken down into tiny pieces to virtually eliminate allergic reactions in most babies allergic to cow's milk protein. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for you.